GB857649A - Improvements relating to thiocarbonyl fluoride polymers and their production - Google Patents

Improvements relating to thiocarbonyl fluoride polymers and their production

Info

Publication number
GB857649A
GB857649A GB18837/58A GB1883758A GB857649A GB 857649 A GB857649 A GB 857649A GB 18837/58 A GB18837/58 A GB 18837/58A GB 1883758 A GB1883758 A GB 1883758A GB 857649 A GB857649 A GB 857649A
Authority
GB
United Kingdom
Prior art keywords
polymerization
polymers
sodium cyanide
thiocarbonyl
solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB18837/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB857649A publication Critical patent/GB857649A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/02—Polythioethers
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/70—Compounds containing carbon and sulfur, e.g. thiophosgene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D339/00—Heterocyclic compounds containing rings having two sulfur atoms as the only ring hetero atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/02—Polythioethers
    • C08G75/06—Polythioethers from cyclic thioethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polyethers (AREA)

Abstract

Polymers, or copolymers, of thiocarbonyl fluoride having recurring -SCF2- units and having molecular weights at least 2000 are prepared by polymerizing thiocarbonyl fluoride containing less than 5% sulphur- or fluorine-bearing non-polymerizable impurities, with, or without, an ethylenically unsaturated monomer e.g. 1-95% tetrafluoroethylene, or vinyl fluoride. Polymerization may be bulk or solution polymerization at -50 to 150 DEG C. in the presence of free radical addition polymerization initiators, e.g. a a 1-azodiisobutyronitrile, or anionic initiators, e.g. sodium cyanide, triphenyl phosphine, or sodium cyanide in solution in N, N-dimethyl formamide. The polymers vary from low molecular weight waxy solids of m.pt. 35 DEG C. soluble in chloroform to yield coating solutions, to high m.pt. materials, which can be pressed to rubbery films. Specifications 857,650 and 857,651 are referred to.ALSO:Polymers, or copolymers, of thiocarbonyl fluoride having recurring -SCF2- units and having molecular weights at least 2000 are prepared by polymerizing thiocarbonyl fluoride containing less than 5% sulphur- or fluorine-bearing non-polymerizable impurities with, or without, an ethylenically unsaturated monomer, e.g. 1-95% tetrafluoroethylene, or vinyl fluoride. Polymerization may be bulk or solution polymerization at -50 to 150 DEG C. in the presence of free radical addition polymerization initiators, e.g. a a 1-azodiisobutyronitrile, or anionic initiators, e.g. sodium cyanide, triphenyl phosphine or sodium cyanide in solution in N,N-dimethylformamide. The polymers vary from low molecular weight waxy solids of m.pt. 35 DEG C., soluble in chloroform to yield solutions suitable for coating, to high m. pt. materials which can be pressed to rubbery films. Specifications 857,650 and 857,651 are referred to.
GB18837/58A 1957-06-12 1958-06-12 Improvements relating to thiocarbonyl fluoride polymers and their production Expired GB857649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US665142A US2980695A (en) 1957-06-12 1957-06-12 Polyfluoro-1, 3-dithietanes and their preparation

Publications (1)

Publication Number Publication Date
GB857649A true GB857649A (en) 1961-01-04

Family

ID=24668897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18837/58A Expired GB857649A (en) 1957-06-12 1958-06-12 Improvements relating to thiocarbonyl fluoride polymers and their production

Country Status (3)

Country Link
US (1) US2980695A (en)
DE (1) DE1137866B (en)
GB (1) GB857649A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136744A (en) * 1961-04-14 1964-06-09 Du Pont Fluorothiranes, their preparation and hompolymers thereof
US3255156A (en) * 1961-05-01 1966-06-07 Du Pont Process for polymerizing thiocarbonyl compounds
US3138575A (en) * 1961-09-15 1964-06-23 Du Pont Process for the anionic polymerization of omega-lactams with poly (fluoromethylene)sulfide as activator
US3216978A (en) * 1962-04-18 1965-11-09 Du Pont Polymerization of thiocarbonyl compounds with alkyl-peroxy boranes and alkyl metal compound
JPS584137A (en) * 1981-06-30 1983-01-11 Daikin Ind Ltd Forming method for resist and fine resist pattern

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562994A (en) * 1951-08-07 Method for preparing
US2701253A (en) * 1955-02-01 Substituted dithiolanes
US2055617A (en) * 1931-06-23 1936-09-29 Standard Oil Dev Co Production of oxalyl chloride
US2538941A (en) * 1948-01-29 1951-01-23 Macallum Alexander Douglas Process for producing aromatic sulfide and the resultant products
US2570793A (en) * 1948-03-11 1951-10-09 Du Pont Preparation of acyl fluorides
US2534366A (en) * 1948-07-28 1950-12-19 Celanese Corp Production of polymeric compounds
US2662899A (en) * 1950-07-29 1953-12-15 Stauffer Chemical Co Chlorinated cyclic organic trithiocarbonate and process for preparing same

Also Published As

Publication number Publication date
DE1137866B (en) 1962-10-11
US2980695A (en) 1961-04-18

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